Average Co-Inventor Count = 1.00
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Joh. Enschede En Zonen Grafische Inrichting B.v. (1 from 3 patents)
1 patent:
1. 5374976 - Support provided with a machine detectable copying security element